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Implement Myers' Diff algorithm #1

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utkarshkukreti opened this issue Jun 6, 2015 · 1 comment
Open

Implement Myers' Diff algorithm #1

utkarshkukreti opened this issue Jun 6, 2015 · 1 comment

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@utkarshkukreti
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http://www.xmailserver.org/diff2.pdf
@utkarshkukreti utkarshkukreti mentioned this issue Dec 16, 2019
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@Wilfred
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Wilfred commented Mar 11, 2022

@utkarshkukreti I'm using this crate in difftastic and it works really well, but it struggles on larger inputs (e.g. >50,000 line file comparisons). What algorithm does diff.rs use today?

Wilfred added a commit to Wilfred/difftastic that referenced this issue Mar 12, 2022
@Wilfred
Use Myers' diff everywhere
dad463d 
The diff crate has a great ergonomic API, but it doesn't implement
Myers' algorithm and performs badly on large inputs.

utkarshkukreti/diff.rs#1

Now that we have a wrapper wu_diff that provides a similar API,
replace the remaining call sites to diff::slice(). These are
relatively cold, so this is a small performance improvement (1%
instruction reduction).
This was referenced Feb 3, 2024
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@Wilfred @utkarshkukreti